Polycount is holding a contest for Dota 2 where artists create sets for one of the many heros in the game so myself and 2 coworkers are participating and are going to make a set for the Warlock. Here's our initial concepts.

(These are paintovers of Valves original artwork from Dota 2 and they own the rights to this character. The first 3 paintovers are done by me)